Reinforced building block or slab.



No. 873,600. PATENTED DEC. 10, 1907.

E. c. POOLE. REINFORCED BUILDING BLOCK OR SLAB.

APPLIGATION FILED JAN. 19, 1906.

70223026 6 e15, Eve/a1 0, ciazarul (1 0026 they may be connected by iron or steel rods.

nrrEn STATES "PATENT, onrron.

- nnwnnnooorna POOLE. or SOUTHAMPTON,ENGLANQ.

; ,anmroncnn-auunme BLOCK on 1 -lil'o; 813,600, a

To all whom it moi/concern:

Be it known that I, EDWARD COOPER POOLE, civil engineer, a subject of the King of Great Britain, residing at 61 High street,

Southampton, England, have invented certain new and useful Improvements 1n Remforced Building Blocksor Slabs, of which the following is a specification.

- My invention relates to armored or reinforced concrete construction, and comprises improvements in armored or reinforced concrete slabs, pieces, or blocks, and means for joining such slabs or blocks together to form tion to form permanent casings for concrete construction, or to enable concrete construction or work to be carried out-or erected under conditions in which it would be diiiicult or impracticable to execute such work, either as original, repair or supplementary work.

The main object of my invention is to provide reinforced or armored concreteslabs or pieces of various convenient portable sizes, provision being made so that when theslabs or pieces are assembled, they may be joined together to form a monolithic whole," or to form a casing which when filled in with concrete, or concrete and metal'in any form, will become a monolithic whole in which the armor is so placed that an evenly distributed strain is provided for throughout the entire slab piece or structure. According to and in' carrying out my invention, I reinforce that is strengthen'the concrete slabs or pieces by means of iron or steel barsiof any approved section arranged to cross or recross the breadth, and also if,

edges of the slabs or pieces forming a series oops or eyes which project somewhat beyond theed .esof the slabs or pieces so that when the sla s 'or pieces are brought together In the accompanying drawings which form apart of this specification, I'have shown my improved construction of reinforced concrete slab, piece for block, and have illustrated various ways of employing such slabs,

pieces, or blocks assembled together, or of employing such slabs, pieces or blocks to form casings for the construction, repair, or

strengthemng of concrete or other work.

2; .specificatibn ofLetters-Patent.

Southampton, in fthe county borough ofa monolithic whole, and in their combina- 1 Description of the -drawings.Figures 1 and 2 show in plan the alternate lay of the iron or steel bars, and Fig. 3 is a plan of the block or slab broken away, showing the overlapping portions of the bar positioned at a ploilnt from: the side edges of the block or s a In the drawings the same letters and fig ures are used todenote the same or corresponding parts throughout the various figures.

With reference to the drawings: adesighates the iron or steel bar or bars which I employ, these may be of any approved section, and according to my invention are arranged to cross and recross the breadth, and if necessary or desired, the breadth and length of each block or slab in a continuous diagonal alternating direction without interrupting the continuity of the armor or reinforcing metal bar or rod,1and so as to provide for an evenly distributed strain throughout the entire ferro concrete slab or piece.

The block or slab is formed of a body ortion c of plastic material and has embe ded therein a'reinforcing member in the form of a diagonally extending portions of greater onally-disposed portions overla ping each other and forming thereby eyes projecting from the body. ortion c of the block. The parts of the (iagonally-disposed 7 which overlap. are positioned *wit rin the block at a point removed from the side edges thereof.

d denotes a rod by which the adjacent slabs maybe joined ashereinafter more fully described.

The concretaslabsor pieces a reinforqed with the continuous bars-a looped at b, are made in'molds, the, concrete being consolidated either by ramming in the usual way, or by pressure in hand or mechanical resses. The slabs or pieces 0 are then stacke to dry and mature; and when matured can be placed together so .as to form the desired structure andimmediafiely'take the stress" intended for them, thus allowing the work to proceed very rapidly, no waiting being necesture before-loading it or plastering, or other;

Wise finishing it.

As previously-stated, to .join the slabs or pieces together, I employ iron or steel rods (1 bar a, the latter being bent to form a series of portions m an Dal-o; 1907 Application filed J anuary 19.1906. swarm. 296.842." 3 Y a sary for the. concrete in the structure to ma- 'whi l1 ;-I or, lace through the loops o1" eyes. bf of the rei orcingrodsa. on the meet-' edges of the-ad'acent slabs 0, thus joining woe to 'piece 2m ment mortar substance. 1

What I claim as my invention, and desire or'other suitable material or lbii-tosecure by Letters Patent is' Asa new article of manufacture, a building block comprising in itsconstruction a reinfo'rc'j member'and a body ortion of plastic materlal within+which sai' member is em- 15 bedded,-said member bent to form-a series of diagonally extending portions of greater length than the width oflthe block, said diagthe Whole together; the.- 5" oints or meeting edges of the "slabs thus I formed being then grouted together with ce' of the diagonally-disposed anally-disposed portions overlapping ,each other and forming thereby eyes pro ecting from the body portion of the block, the parts 20 ortlons which 4 overlap positionedlwithin t e block at a point removed from the side edges thereof,

said eyes disposed in a plane with respect to each other so as tosreglster with each other for freely I'GCQIVIIIO abondmg member.

- In testimony w iereof I have hereunto set my hand in presence of two subscribing wit- 

